Innovation for Trap Particle and Eliminate Germs in Air By Corona Electrostatic System

The soybean rust caused by Phakopsora pachyrhizi is considered the main soybean disease and consequently the appropriate selection and the use of spraying equipment are vital for its control. The aim of this study was to evaluate the performance of aerial application equipment for soybean rust control. It was used: Micronair AU 5000 at 10 L ha-1 (with oil) and at 20 L ha-1 (without oil); Stol ARD atomizer at 10 and 20 L ha-1 (both with oil) and Spectrum (electrostatic) at 10 L ha-1 (without oil). The adjuvant was cotton oil (1.0 L ha-1) with emulsifier (BR 455) at 0.025 L ha-1. The field trial was set up at the 3rd fungicide application, when f four replications of each treatment. There were no statistical differences among treatments related to fungicide deposits by at a Confidence Interval of 95%. It was observed that the best results were obtained with Micronair (10 L ha-1 with oil), Stol (20 L ha-1 with oil) and electrostatic system at 10 L ha-1 with the lowest relative humidity (64%).

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Laser diffraction analysis of purified Descurainia Sophia seeds by a tribo-aero-electrostatic system

Research in Agricultural Engineering ◽

10.17221/48/2018-rae ◽

2019 ◽

Vol 65 (No. 4) ◽

pp. 123-130

Author(s):

Mojtaba Afsharipour ◽

Kazem Jafari-Naeimi ◽

Hadi Samimi-Akhijahani

Keyword(s):

Data Analysis ◽

Electrical Properties ◽

Diffraction Analysis ◽

Size Distribution ◽

Seed Size ◽

Relative Frequency ◽

Laser Diffraction ◽

Descurainia Sophia ◽

Electrostatic Separator ◽

Electrostatic System

In order to separate the impurities in vegetable seeds, a tribo-aero-electrostatic separator was designed and manufactured. The data analysis of the pure Descurainia Sophia seed shows that the interaction of the voltage, distance and angle was significant on the weight of the D. Sophia at the level of 1%. To determine and compare the size of the separated seeds, a laser diffraction device with the possibility of analysing the size distribution of the particles was used. The results showed that the best purity (99.5%) with the highest percentage of the relative frequency of the D. Sophia seeds size was obtained for box 1 (the first box) with a seed size of 680 μm. By moving from box 1 towards box 4, the amount of the impurities due to the variation of the electrical properties of the materials increases, although the value of the impurities for the samples is acceptable.

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Hole Sensitivity Analysis for Topology Optimization in Electrostatic System Using Virtual Hole Concept and Shape Sensitivity

IEEE Transactions on Magnetics ◽

10.1109/tmag.2015.2499260 ◽

2016 ◽

Vol 52 (3) ◽

pp. 1-4 ◽

Cited By ~ 4

Author(s):

Kang Hyouk Lee ◽

Seung Geon Hong ◽

Myung Ki Baek ◽

Il Han Park

Keyword(s):

Sensitivity Analysis ◽

Topology Optimization ◽

Shape Sensitivity ◽

Electrostatic System

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Nearest trap-particle distances in a one-dimensional CTRW model with a mobile trap

Physica A Statistical Mechanics and its Applications ◽

10.1016/0378-4371(91)90329-b ◽

1991 ◽

Vol 174 (2-3) ◽

pp. 209-213 ◽

Cited By ~ 7

Author(s):

George H. Weiss ◽

Jaume Masoliver

Keyword(s):

Trap Particle ◽

One Dimensional

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Research on the Equipment for Electrostatic Flocking of the Activated Carbon Fibers

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.43.405 ◽

2010 ◽

Vol 43 ◽

pp. 405-408

Author(s):

Qiang Wu ◽

Yong Ming Qian ◽

Qian Wang ◽

Yi Dan Zhou

Keyword(s):

Activated Carbon ◽

Control Systems ◽

Carbon Fibers ◽

Main Function ◽

Activated Carbon Fibers ◽

Overall Design ◽

And Control ◽

Electrostatic System

Based on the analysis of the equipment requirements for the "upper-adsorption” electrostatic flocking method of the Activated Carbon Fibers, the overall design of equipment is given, and the electrostatic system, the main function equipments and control systems of the device are also introduced separately.

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XL. On the dimensions of a magnetic pole in the electrostatic system of units

The London Edinburgh and Dublin Philosophical Magazine and Journal of Science ◽

10.1080/14786448208627278 ◽

1882 ◽

Vol 14 (89) ◽

pp. 357-365 ◽

Cited By ~ 1

Author(s):

Oliver J. Lodge

Keyword(s):

Magnetic Pole ◽

System Of Units ◽

Electrostatic System

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Spray technology for deposition of droplets on coffee leaves and fruits1

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632021v5166806 ◽

2021 ◽

Vol 51 ◽

Author(s):

Renan Zampiróli ◽

Cleyton Batista de Alvarenga ◽

Matheus Vilhena Parenti ◽

João Paulo Arantes Rodrigues da Cunha ◽

Fernando Juari Celoto ◽

...

Keyword(s):

Application Rate ◽

Electrostatic Spraying ◽

System A ◽

Coffee Plants ◽

Coffee Cultivation ◽

Upper Third ◽

Electrostatic System

ABSTRACT The correct deposition of spray along the canopy is important for the phytosanitary control in coffee plants; however, the structure of the plant makes this distribution difficult. This study aimed to evaluate the deposition of a tracer on leaves and fruits in coffee cultivation, with respect to the application rate and type of hydraulic nozzle, as well as the use of an electrostatic spraying system. A hydropneumatic sprayer was used, with hydraulic nozzles of empty conical jet of the series TVI (coarse droplets with air induction) or JA (fine droplets), at rates of 200 and 400 L ha-1. An electrostatic system, with SPE-2 nozzle and rate of 200 L ha-1, was also evaluated. The deposition of the tracer on leaves and fruits of the upper, middle and lower thirds of the trees, as well as the losses to the ground in the canopy projection, were quantified using spectrophotometry. The results indicated that the electrostatic application provides a greater deposition on leaves of the upper third than the hydropneumatic application, regardless of the application rate. The use of the TVI nozzle results in a greater deposition on the fruits of the middle third and a greater loss to the ground than the JA nozzle. Although an application rate of 400 L ha-1 results in a greater deposition on the fruits of the middle third than an application rate of 200 L ha-1, it also causes a greater loss to the ground.

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